对于低压大功率电机，为了获得适宜的通电截面，往往需要多根电磁线进行并联，同时，电机绕组的引接线部分，为了规避电机物理空间的局限性，以及电机接线、绕组绝缘处理过程可能涉及到的质量问题，也会通过多根较细导电直径的引接线进行关联。问题来了，并联的引接线如何与并绕的电磁线进行连接？如何保证连接后绕组及引接线的正常运行？这是一个非常关键和重要的设计和工艺控制环节。

从简单的物理知识我们可以分析，只有将每一相多股并绕的电磁线均匀地分配给多根的电机引接线，且保证每一个连接部位都可靠，才能有效保证电机绕组性能的正常运行，任何分配的不均匀，以及头尾分配的不一致性，都可能导致引接线及电磁线电流密度的不均匀，出现绕组或引接线发热的不良后果。

For low-voltage high-power motors, in order to obtain a suitable cross-sectional area, multiple electromagnetic wires are often required to be connected in parallel. At the same time, in order to avoid the limitations of the physical space of the motor and the quality issues that may be involved in the motor wiring and winding insulation treatment process, the connection of the motor winding's lead wire is also linked through multiple lead wires with finer conductive diameters. The question is, how can parallel lead wires be connected to parallel wound electromagnetic wires? How to ensure the normal operation of the connected winding and lead wire? This is a crucial and important design and process control process.
From simple physical knowledge, we can analyze that only by evenly distributing each phase's multi stranded electromagnetic wire to multiple motor leads, and ensuring that each connection is reliable, can the normal operation of motor winding performance be effectively guaranteed. Any uneven distribution, as well as inconsistency in head and tail distribution, may lead to uneven current density in the leads and electromagnetic wires, resulting in adverse consequences such as heating of the windings or leads.